| Project/Area Number |
20710010
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | University of Shizuoka |
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Principal Investigator |
OHURA Takeshi University of Shizuoka, 農学部, 准教授 (60315851)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | ハロゲン化PAH / 塩素化PAH / 臭素化PAH / 光分解 / 遺伝毒性 / AhR / 暴露リスク / Ames試験 / 家電リサイクル施設 / 未規制リスク因子 / 焼却灰 / ガス / 粒子分配 / 発生源 |
|---|
| Research Abstract |
Recently, the compounds that polycyclic aromatic hydrocarbons substituted chlorine atom, halogenated PAHs, have been found in the air, whereas there is a few information concerning environmental behaviors of halogenated PAHs. In this study, we found that halogenated PAHs are universally distributed in the environment such as air, soils and sediment. In particular, we firstly found that brominated PAHs are present in the particle phase in air. Diurnal variation analysis of halogenated PAHs indicated that halogenated PAHs in the air are susceptible to photodecay. In addition, exposure risks of ambient halogenated PAHs estimated from aryl hydrocarbon receptor binding activity were suggested to be considerably lower than those of PAHs.
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